We will always send the latest available version of this product with upgraded functions. However, the newest version might have different shape or color from the item in these pictures. Please do not buy this item if you don't agree with this condition. Make sure to choose shipping with trafficking info, otherwise, we can't provide you with a tracking number.

Product description:

ESP32 is an integrated antenna and RF balun, power amplifier, low-noise amplifier, filters and power management module. The module is optimized to take as little space as possible.